264. Clifford Asness
$3 billion self-made score: * source: Money Management age: 51 residence: Greenwich, conn.
Ph.d., u. of chicago ’94 His AQR Capital Management is one of the fastest-growing money managers, with $195 billion of assets under management thanks to its strategy of investing via a system that buys stocks based on attributes, like value or momentum, believed to produce higher returns over time. He cofounded the firm in 1998 with David Kabiller and John Liew, who are worth $1 billion apiece.